>From scsih_qcmd, we add checkfor the ioc->remove_host flag, and return DID_NO_CONNECT.
Driver should not call shutdown call from _scsih_remove otherwise,
The scsi midlayer can be deadlocked when devices are removed from the driver
pci_driver->shutdown handler.
Signed-off-by: Kashyap Desai <kashyap.desai@xxxxxxx>
---
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 30f77dd..55b9632 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -3766,7 +3766,7 @@ _scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
return 0;
}
- if (ioc->pci_error_recovery) {
+ if (ioc->pci_error_recovery || ioc->remove_host) {
scmd->result = DID_NO_CONNECT << 16;
scmd->scsi_done(scmd);
return 0;
@@ -7314,7 +7314,6 @@ _scsih_remove(struct pci_dev *pdev)
}
sas_remove_host(shost);
- _scsih_shutdown(pdev);
list_del(&ioc->list);
scsi_remove_host(shost);
scsi_host_put(shost);
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